Finding the Fourth Proportional to 382,628,106.74, 528,025,492.41 and 215,364,271.05
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Solution
The fourth proportional to 382,628,106.74, 528,025,492.41 and 215,364,271.05 is: 297,201,965.22
Step by Step Solution
- Step 1: Write the proportion equation
382,628,106.74 : 528,025,492.41 = 215,364,271.05 : x - Step 2: Convert to fraction form
382,628,106.74/528,025,492.41 = 215,364,271.05/x - Step 3: Cross multiply
382,628,106.74x = 528,025,492.41 × 215,364,271.05 - Step 4: Simplify right side
382,628,106.74x = 113,717,825,268,696,976 - Step 5: Solve for x
x = 113,717,825,268,696,976/382,628,106.74 - Step 6: Final answer
x = 297,201,965.22
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.